XYZ makes two types of products using 4 machines for 8 hours each day. Product A visits machines 1, 2 and 4. Product B visits machines 1 and 3. The capacity is 0.6 unit per minute at machine 1, 0.12 unit per minute at machine 2, 0.2 unit per minute at machine 3 and 0.5 unit per minute at machine 4. The demand per day is 40 units for product A and 160 units per day for product B. Determine the Implied Utilization ( IU) for all resources. What is the bottleneck ? Why ? . Show all formulas used, calculations and results.